Photo-micrographic apparatus



June 11, 1935. a. FASSIN PHOTO-MICROGRAPHIC APPARATUS Filed April 7,1934 2 Sheets-Sheet 1 l GUSTAVE FASSIN INVENTOR w m with FIG.

A-TTORNEY June "1 1, 1935. e. FASSIN 2,004,807

PHOTO-MICROGRAPHIC APPARATUS Filed April 7, 1934 2 Sheets-Sheet 2 FIG 2GUSTAVE FASSIN INVENTOR BY Md ATTORNEY Patented June 11', 1935 UNITEDSTATES PATENT OFFICE PHOTO-MICROGRAPHIC APPARATUS Gustave Fassin,Irondequoit, N. Y., assignor to Bausch & Lomb Optical Company,Rochester, N. Y., a corporation of New York Application April 7, 1934,Serial No. 719,504

3 Claims. (Cl. 95-44) is n ention relates to photo-micrographicmicroscope ocular a connector tube 20 having an apparatus and has forone of its objects the proupwardly projecting reduced portion 2| adaptedvision of a relatively simple. yet efficient, device to fit into theopening 22 in the camera or into for taking photographs of objectsthrough a the open lower end of focusing tube l8.

5 microscope. Another object is to provide an ap- In opera io eapparatus is set so that the 5 paratus of the type described having afocusing usi g ube is s i operative alignment With tube on the camera toenable the operator to sethe microscop The microscope is then Ioousedcure proper focus and lighting adjustments. A and the lighting adjustedso that the object on further object is to provide a convenient fo u themicroscope stage is sharply imaged on the ing screen for aphoto-mlcrographic apparatus screen l9. Such focusing adjustments aremade .10 embodying a type of camera which ordinarily by raising orlowering the bracket and camera does not have a focusing screen. Theseand so as to give a good image on the screen and the other objects andadvantages reside in certain fi al u in ju ent s mo e wit he rack novelfeatures of construction, arrangement and and pinion o ow on themicroscope The combination of parts as will hereinafter be more ar 3 s ten s p against the lower side of 15 fully described and pointed out inthe appended the bracket. The focusing tube and camera are claims. thenraised up to clear the projecting part 2| of Referring to the drawings:the connector tube and the camera is swung Fig. 1 is a side view of my dvi into position above the microscope, as shown in 20 Fig. 2 isa frontview thereof showing the cam- 2, With the oolmeete! tu e 20 making a 20era in operative relation to the microscope. light-tight connection asshown in Fig. 4. Since Fig. 3 is a front, view showing th focusing t thescreen l9 lies in the plane of the film in the in operative relation tothe microscope. am a, e image f e object will be s a p y Figs. 4 and 5are sectional views of details. focused on the The exposure is then adeA preferred embodiment of my invention is i t e ual a n 25 disclosed inthe drawings wherein Ill indicates From t e foregoing, t W ll be appa ta base carrying a vertical support rod H on I am able to attain theobjects of my invention which is slidably and rotatably mounted the andprovide a photo-micrographic apparatus bracket i2. A collar l3 alsoslidable on rod II which will be relatively simple in structure yet actsas a stop to limit the vertical movement of convenient and eflicient inoperation. My de- 30 bracket l2 and may be clamped in adjusted posivicemakes it possible to employ relatively cheap, tion by means of screw I4.A microscope M is simple cameras such as the well known types detachablysecured to base In by means of a of box or folding cameras which do nothave clamp which comprises a U-shaped plate I5 built-in focusingscreens. The lens of the camwhich passes around the lug I0 and contactsera is preferably omitted as shown in Fig. 4. 35 with the base of themicroscope. The top side The screen l9 covers only a part or the fieldof plate 15 engages the under side of pin l6 which which will bephotographed but it is sufficient to projects outwardly from each sideof lug I0 and enable focusing. Furthermore, it often happens screw l1threaded to plate i4 urges the clamp that the microscopist is interestedin a small downward against the base of the microscope. portion of thespecimen and in such an event 40 FiXediy secured to bracket I2 is acamera H the image of the desired part can be focused which y be f anysuitable yp l h gh I and centered by means of my device. Because haveshown a well known, inexpensive type of of its simplicity, my apparatusis especially box camera which is adapted to hold a roll of adapted foruse by amateurs. Various modificasensitized film. Attached to the sideof camera ti n an obviously be mad ithout; departing 45 H is a tube I8which is open at its lower end from the spirit of my invention. andclosed at its upper end by a translucent I l i v screen element H), suchas ground glass or the 1, I photo-micrographic apparatus th like. Thescreen element I9 is positioned so that combination of a base, a supportrod on said it lies substantially in the horizontal plane of base abracket slidably and rotatably mounted 50 the sensitized element whichis in exposure D on said rod, an adjustable collar on said rod sltion incamera i I. In order to form a lightfor limiting the vertical movementof said ti h Connection between the microscope and bracket, a camerasecured to saidbracket, a camera and between the microscope and thefofocusing t b fixedly t d on th id of cusing tube is there iSpositioned on top 01' the said camera, a, translucent screen elementmounted in said tube, said element being positioned substantially in theplane of the sensitized element carried by said camera.

2. A photo-micrographic apparatus comprising a base, a microscopedetachably secured to said base, a support rod on said base, a bracketslidably and swingably mounted on said rod, a collar adjustably mountedon said rod for limiting the vertical movement of the bracket, 2. boxcamera secured to said bracket, a vertically disposed focusing tubemounted on the side of said camera, the vertical dimensions of said tubeand camera being substantially the same, and a screen element mounted insaid tube and positioned substantially in the plane of the sensitizedelement carried by the camera.

3. A photomicrographic apparatus comprising a support, a microscopepositioned adjacent to said support, a. camera mounted on said support,a focusing tube secured to'said camera,

GUSTAVE FASSIN.

